--- gcc/gcc/libffi/src/x86/ffi64.c	2004/01/21 06:11:08	1.6
+++ gcc/gcc/libffi/src/x86/ffi64.c	2004/10/12 16:47:26	1.6.6.1
@@ -341,6 +341,8 @@
 	{
 	  /* Pass this argument in memory.  */
 	  argp = (void *)ALIGN(argp, (*p_arg)->alignment);
+	  /* Stack arguments are *always* at least 8 byte aligned.  */
+	  argp = (void *)ALIGN(argp, 8);
 	  memcpy (argp, *p_argv, (*p_arg)->size);
 	  argp += (*p_arg)->size;
 	}